CppEditor: Jump directly to single virtual function

Assumption: model never has 1 entry for immediate result
(there is always the natural result + "Searching for overrides"

Change-Id: I5de7e7933b1309f995a6111a2ab1c7aed31c086e
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/plugins/texteditor/codeassist/genericproposalwidget.cpp

@@ -666,6 +666,11 @@ bool GenericProposalWidget::activateCurrentProposalItem()
     return false;
 }
 
+IGenericProposalModel *GenericProposalWidget::model()
+{
+    return d->m_model;
+}
+
 #include "genericproposalwidget.moc"
 
 } // TextEditor